Error 501?

i was about to post a topic on the newbie help, but when i clicked submit, it went to the page as seen below,,, so i quit firefox and restarted it, tried it again, but this time it wouldnt let me go on battledawn either, so i tried I.E and it worked, so i made this topic,,

what happend ? anyone know?i could go on battle dawn on firefox before,,, why has it changed?

I have this same error with Firefox AND after clearing cache, cookies and even using another comp (my same internet) firefox won't let me enter BD... Strange huh? I've been using Safari and Chrome to post and play but I can't tell if they won't break because of BDs awsomeness.

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